Establishment of the generation method of air-coated abrasive suspension jet under submerged condition
| Project/Area Number |
26420124
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Fluid engineering
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| Research Institution | Nihon University |
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Principal Investigator |
PENG Guoyi 日本大学, 工学部, 教授 (90295527)
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| Co-Investigator(Kenkyū-buntansha) |
清水 誠二 日本大学, 工学部, 教授 (80154293)
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| Research Collaborator |
TRYGGVASON Greater
OGUMA Yasuyuki
NISHIKATA Hironori
ISHIZAKI Kenji
OKADA Kunihiro
ITO Takayuki
WAKUI Ayaka
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| Project Period (FY) |
2014-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | ウォータージェット / 混相流 / キャビテーション / 気泡流 / 可視化計測 / 数値解析 / 数値シミュレーション |
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| Outline of Final Research Achievements |
The cutting method of underwater structures is essential to dismantle a nuclear plant decided on decommissioning such as Fukushima Daiichi Nuclear Power Station. However, when the Abrasive Suspension Jet (ASJ, hereafter) technology is applied the processing capability quickly declines with increase of standoff distance. In order to enhance the performance of ASJ, the method to generate air-coated ASJ by using sheathed nozzle with ventilation is established in this work, and the effects of sheath dimension and ventilation air flow rate are examined through flow analysis and material cutting tests.
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Report
(5 results)
Research Products
(16 results)
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[Presentation] Evolution of abrasive suspension jets2016
Author(s)
Seiji Shimizu, G. Peng, Y. Oguma
Organizer
11th Pacific Rim International Conference on Water Jet Technology (PRIC-WJT 2016)
Place of Presentation
Xuzhou, China
Year and Date
2016-10-16
Related Report
Int'l Joint Research
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